Lyman o



. UNITED STATES PATENT OFFICE.

LYIAN-O. rrcxnr'r, or. nmeahmron, NEW roan,

PROCESS OF MAKING TAR-FELT MATERIAL.

No Drawing.

To all whom'it may concern:

Be it known that I, LYMAN O. Proxn'rr, a citizen of the United States, residing at 'Binghamton, in" the county of Broome, 5 State of New York, have invented a new and .useful Process of Making Tar-Felt Ma-- terial; and I do hereby declare the following' to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. 4

The. present invention relates to a pr ri'v ess of making tar felt material, and has for its object to' provide an inexpensive and expeditious method wherebyi'a tar felt sheet suitable for use between shoe soles, asroofing, or the like, can be readily produced.-

Further objects of the invention are to provide a process, for producing the tar felt sheet material which insures a proper mixing of the ingredients and enables the mixed product to be rolled into sheets of the desired thickness without sticking to the rolls.

of bind' rosin is aced in a container and subjected to a su cient amount of heat to convert it into a liquid form. A fibrous filling substance such as tannery hair, scrap felt, or'

so comminuted rags and 'a'per is then placed directly into the melted tar and the tar and fibrous material stirred until they are thoroughly mixed, the fibrous material being completely saturated with the tar, and asu ficient quantity of fibrous material being In carrying out the invention a quantity material such as tar, asphalt or 'into the melte 'tinuously spra mass from stic Specification of li'letters Patent. Patentd Nfiv, 11, 1919, Application filed m 1918.. Serial in. 236,217.

mass is next placed directly against a air "v of wet iron rolls and rolled'out into a s eet form thereby. These rollsare continuously sprayed by water from both sides, so that t ey are maintained in awet condition, a and the water cooled mass of tar and feltcan be readil rolled out into a thin sheet by these-wet re s without danger of the naterial sticking to the rolls. the distance between the rolls a sheet of any desired thickness can be obtained. 4

' Havin thus described the invention,

what I c aim as new and desire to secure by Letters Patent, is:- p

-1. The process of making sheet material ofthe character described, which consists in meltin a tar binder by the action of heat,

thorough y mixing a sufficient quantity of fibrous filling material with the tar bindereo to -partial] absorb the same, cooling the mass by su jecting it to a 'waterbath, and rolling the cooled mass into a sheet between wet rolls.

2. The process of making sheet material ofthe character described, which consists in meltingl a tar binder by subjecting the same to t e action of heat, stirring a sufficient quantit of fibrous filling material tar mat erial to su stantially 70. absorb the same, cooling the hot mixture by subjecting it to a water bath, passing the cooled mass' betweetn' iron rolls, and coning' he rolls to prevent the thereto.

. '75 In testimony w ereof I have signed my name to this specification in the presenoeof 7 I two subscribing witnesses.

Witnesses:

A. R. HUMPHREYQ C. W; Hu rrnnim'.

-LYMAN o. PIQKETT. a

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